10009859 has 4 divisors (see below), whose sum is σ = 10065960. Its totient is φ = 9953760.

The previous prime is 10009823. The next prime is 10009871. The reversal of 10009859 is 95890001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95890001 = 509 ⋅188389.

It is a cyclic number.

It is not a de Polignac number, because 10009859 - 2⁸ = 10009603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10009159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27782 + ... + 28139.

It is an arithmetic number, because the mean of its divisors is an integer number (2516490).

Almost surely, 2^10009859 is an apocalyptic number.

10009859 is a deficient number, since it is larger than the sum of its proper divisors (56101).

10009859 is an equidigital number, since it uses as much as digits as its factorization.

10009859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56100.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 10009859 is about 3163.8361209140. The cubic root of 10009859 is about 215.5142476534.

The spelling of 10009859 in words is "ten million, nine thousand, eight hundred fifty-nine".